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JAivtEs 'B. SPEED, OF LOUISVILLE, KENTUCKY.

Letters Patent No. 97,243, dated November 23, 1869.

, IMZEROVEMENT IN LIME-KILNS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, JAMES B. SPEED, of Louisville, in the county of J eii'erson, and State of Kentucky, have invented a new and useful Improvement in Lime and Cement-Kilns; and I do hereby declare that the following is a full, clear, and exact description thereof, reference beinghad to theannexcd drawings, making part of this specification, in which- Figure 1 is a side elevation, partly in section, of my improved kiln, showing the receptacle for the material to be burned, the distributor over the mouth of the kiln, the car for transporting the material, the machinery for receiving the same, and the chutes for delivering the same into a car after it has been burned;

Figure 2 is .an end view, partly in section, of the parts shown in fig. 1;

Figure 3 is a plan or top view of a series of kilns,

arranged according to my plan, togetherwith the machinery for elevating the material 'to be burned;

Figure 4 is a side view, showing the method in use for filling kilns previous to my invention; and Figure 5 is. an end view, showing the same method, and also that of delivering the material after it has been burned.

Corresponding letters refer to in the several figures.

This invention relates to kilns for lmrninglime-rock, or rocks which, when burned, produce hydraulic cecorrcsponding parts ment, and other similar substances, the products of which are similar to those named; and

It consists in the combination and arrangement of devices for that purpose.

To enable those skilled in the art to make and use my invention, Iwill proceed to describe itsconstruction and operation.

A, in the drawings, refers to a kiln or receptacle,in which the rock is to be placed to be burned. It may be of any approved form, and of any capacity to meet the requirements of the circumstances under which it is to be used.

Upon the top of this receptacle, a ring or curb, 1),. is to be placed, which is to be provided with adownwardlyqirojecting flange, as shown in fig. 1 of the drawings, the object beingto protect the upper tier of bricks or stones from injury by the material as it is being dropped into the kiln, and to provide a smooth and securetbundation for the distributing-frame O to rest upon.

This frame consists of a ring or plate, k, of small diameter, to which are attached rods, h, which extend (lOWIllVZtl'tl,2lli about the angle shown in ii". 1, to and are connected with the curb D by means of rivets, or they may be provided with projections, m, as shown in the drawings, which may rest upon the inner edge of such curb, and thus retain the frame in position one,

while the kiln is being filled with rock. In kilns for purposes similar to that to which mineis t0 bedevoted, as they have heretofore been constructed, the rocks have been'placed in them by being taken in the hands of the person performing the work, and dropped in proi'niscuously, taking care only to leave interstices between them for the passage of the products 'of combustion when the fire has been lighted.

The abovedescribed opcrationis a slow and tedious as well expensive, and this part of my invention is intended to remove these objections, by providing a distributor to be placed over the mouth of the kiln, so that when the car containing the rock, with which it is to be filled, is brought over such month, and its bottom opened, the rocks or stones will fall thereon, and thus beguided into the kiln, and placed in their proper positions without any manipulation by the person in attendance. 1

B represents a car, which is peculiarly adapted for discharging the material upon the distributor C, it having a double-hinged and folding bottom, a x, as shown in fig. 1, with chains, '1) I), connecting the bottom a: a: with shaft 0 on top of the car, said shaft having a crank on one or both ends thereof, and a ratchetwheel for retaining the swinging bottoms in-position when the car is beingmoved with its load, as well as permitting of the instantaneous emptying of the sameby dropping the bottoms when it has been brought over the kiln.

.The machinery for elevating the car to its position over the mouth of the kiln consists of any suitable Windlass, which may be driven with a small cngine,as shown in figf2, or it may be driven by a belt or gearing from anyother motive-power, the shaft or drum around which the rope or chain passes being provided with a brake for lowering the car after it has becnunloaded, as clearly shown in lig. 1.

This machinery rises above a railroad or track, upon which the car B runs, which is so arranged, that when said car is drawn up to its position over the mouth of the kiln, said car will be in a position to discharge its contents directly upon the distributerG.

The lower ends of these kilns are provided with grates in the usual way, which are so arranged that they may be withdrawn at the proper time, and the contents of the kiln be allowed to pass out into chutes, g, which convey the same to a car, B", which'is to be arranged to run upon a track provided for that purpose, and-so located as to bring the car directly under the ends of said chutes, as shown in the drawings.

Some of the advantages due to my invention may be enumerated as follows: First, as a consequence of combining the kiln A, car B, and the distributer G, I am enabled to fill the kilns with less expense, and with an expenditure of less time. than by the former method, and hence a much greater amount of lime or cement may be burned in a given length of time. The difi'erence between the old method and the one invented by me will be fully illustrated by a comparison of figs. 1, 2, and 3 of the drawings, with figs. f1: and 5 of the same.

Second, as a consequence of the arrangement of the chutes at the lower ends of the kilns with reference to the same, and the cars for the reception of the material .to be delivered, much time is saved, and the removal of any impurities, which may be found in such material, greatly facilitated by being exposed to full view while passing through or over said chute, thus enabling the person in attendance to remove the same before they enter the car.

Having thus described my invention,

What I claim, and desire to secure by Letters Patcut, is-

1. The distributor O, to be placed over the mouth of the kiln, when constructed substantially as and for .this specification, in the presence of two subscribing witnesses.

. JAMES B. SPEED.

Witnesses:

A. '1. KENDALL, Jos. OLEMENTS. 

